DASLE
MN
State
Exam/
199
Questions
with
100%
correct
answers
Clinical
Crown
-
ANSWER--That
portion
of
the
tooth
that
is
visible
in
the
oral
cavity
Oral
prophylaxis
-
ANSWER--The
complete
removal
of
calculus,
debris,
stain,
and
plaque
from
the
teeth.
DH
and
DDS
allowed
Selective
Polishing
-
ANSWER--a
procedure
in
which
only
those
teeth
or
surfaces
with
stain
are
polished
Purpose
is
to
avoid
unnecessary
removal
of
even
small
amounts
of
surface
enamel
Indications
for
Coronal
Polishing
-
ANSWER---
Before
placement
of
dental
sealants
-
Before
placement
of
dental
dam
-
Before
cementation
of
orthodontic
bands
-
before
cementation
of
crowns
and
bridges
-
before
application
of
acid
etching
solution
(if
indicated
by
manufacturer)
Contraindications
for
Coronal
Polishing
-
ANSWER---
when
no
stains
are
present
-
patients
who
are
high
risk
for
dental
caries
(ex:
bottle
caries,
root
caries,
thin
demineralization
enamel)
-
sensitive
teeth
-
newly
erupted
teeth
B/C
mineralization
of
tooth
surface
maybe
incomplete
Endogenous
stains
-
ANSWER--Stains
developed
from
within
the
structure
of
the
tooth
Example:
Excessive
amount
of
fluoride
during
tooth
formation,
medications
taken
by
the
mother
or
the
child
during
tooth
development
(Tetracycline)
CANNOT
be
removed
by
polishing
Exogenous
Stain
-
ANSWER--originates
from
sources
outside
the
tooth
and
are
caused
by
environmental
agents.
Extrinsic
Stain
-
ANSWER--appear
on
the
exterior
of
the
tooth,
and
CAN
be
removed
by
polishing
Examples:
Food,
Drink,
Tobacco Intrinsic
Stain
-
ANSWER--Caused
by
environmental
agents
but
CANNOT
be
removed
because
the
stain
has
become
incorporated
into
the
structure
of
the
tooth.
Examples:
Amalgam
tattoo,
smoking,
chewing,
or
dipping
Extrinsic
Stain
Examples
-
ANSWER--black
stain,
brown
stain,
yellow
stain,
tobacco
stain,
green
stain,
dental
plaque
agents,
food
and
drink,
Nasmyth's
membrane
Intrinsic
Stain
Examples
-
ANSWER--Pulpless
teeth,
Tetracycline
antibiotics,
dental
fluorosis,
imperfect
tooth
development,
silver
amalgam
Two
methods
of
stain
removal
-
ANSWER--Air-powder
polishing
and
rubber
cup
polishing
Rubber
cup
polishing
-
ANSWER--A
technique
that
is
used
to
remove
plaque
and
stains
from
the
coronal
surfaces
of
the
teeth.
Most
common
Polishing
cups
-
ANSWER--Soft,
webbed
polishing
cups
are
used
to
clean
and
polish
the
smooth
surfaces
of
the
teeth.
Bristle
Brushes
-
ANSWER--made
from
either
natural
or
synthetic
materials,
may
be
used
to
remove
stains
from
deep
pits
and
fissures
of
the
enamel
surfaces
Grasping
the
handpiece
-
ANSWER--Pen
grasp
fulcrum
-
ANSWER--provides
stability
for
the
operator
and
must
be
placed
in
such
a
way
to
allow
movement
of
the
wrist
and
forearm.
Abrasives
(cleaning
and
polishing
agents)
-
ANSWER--extra
coarse,
coarse,
medium,
fine,
extra
fine
the
coarser
the
agent,
the
greater
is
the
abrasion
to
the
surface
What
prophy
paste
is
not
recommended
for
esthetic
restorations?
-
ANSWER--regular
prophy
paste
Low-abrasive
pastes
such
as
micron-fine
sapphire
or
diamond
paste
or
aluminum
oxide
paste
should
be
used
for
restorations.
Factors
that
influence
the
rate
of
abrasion
-
ANSWER--The
more
agent
used,
the
greater
the
degree
of
abrasion.
The
lighter
the
pressure,
the
less
abrasion.
The
slower
the
rotation
of
the
cup,
the
less
abrasion. Sequence
of
Polishing
-
ANSWER--Aesthetic
and
porcelain
restorations
should
be
polished
first
Operators
preference
flossing
after
polishing
-
ANSWER--polish
the
inter
proximal
tooth
surfaces
and
remove
any
abrasive
agent
or
debris
that
may
be
lodged
in
the
contact
area
Evaluation
of
polishing
-
ANSWER---after
tooth
surfaces
have
been
dried
with
air,
no
disclosing
agent
remains,
-teeth
are
glossy
and
reflect
light
from
the
mirror
-no
evidence
of
trauma
to
the
gingival
margins
or
to
any
other
soft
tissues
Topical
Anesthetic
-
ANSWER--provides
a
temporary
numbing
effect
on
nerve
endings
located
on
the
surface
of
the
oral
mucosa
Active
ingredients
in
topical
medications
-
ANSWER--benzocaine,
lidocaine
available
in
ointments,
liquids,
sprays,
and
patches
How
long
do
you
leave
the
topical
anesthetic
on
the
tissue?
-
ANSWER--Minimum
15-30
seconds
Maximum
1-2
minutes
spray
topical
anesthetics
-
ANSWER--applied
to
larger
surface
areas
of
tissues
Useful
when
applied
in
the
back
of
the
throat,
in
patients
with
a
strong
gag
reflex
patch
topical
anesthetics
-
ANSWER--when
placed,
provides
topical
anesthesia
in
10
seconds
Placed
where
a
local
anesthetic
injection
will
go
Useful
for
alleviation
of
discomfort
from
denture
sores
or
oral
ulcers
Injection
sites
-
ANSWER--ASA,
MSA,
PSA,
infiltration,
mandibular
nerve
block,
buccal
nerve
block,
lingual
nerve
block,
mental
nerve
block,
incisive
nerve
block,
nasopalatine
nerve
block,
greater
palatine
nerve
block
Duration
-
ANSWER--time
span,
an
example
is
the
first
sign
of
numbness
from
anesthesia
to
complete
feeling
Induction
-
ANSWER--time
from
injection
to
effective
anesthesia
gauge
-
ANSWER--standard
thickness,
size,
or
measurement
of
something,
such
as
thickness
of
injection
needle
